[Autofill] Add user actions for autofill settings adding cards.

Add user actions for autofill settings adding cards.

Bug: 904459
Change-Id: Ib1d0c1c9fe50e6f95eb09072b1e71231126b28c8
Reviewed-on: https://chromium-review.googlesource.com/c/1351901Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Reviewed-by: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Reviewed-by: Jared Saul <jsaul@google.com>
Reviewed-by: Robert Kaplow <rkaplow@chromium.org>
Commit-Queue: Hao Zhang <hozhng@google.com>
Cr-Commit-Position: refs/heads/master@{#611456}

chrome/browser/extensions/api/autofill_private/autofill_private_api.cc

@@ -439,6 +439,7 @@ ExtensionFunction::ResponseAction AutofillPrivateSaveCreditCardFunction::Run() {
     personal_data->UpdateCreditCard(credit_card);
   } else {
     personal_data->AddCreditCard(credit_card);
+    base::RecordAction(base::UserMetricsAction("AutofillCreditCardsAdded"));
   }
 
   return RespondNow(NoArguments());

tools/metrics/actions/actions.xml

@@ -2348,6 +2348,14 @@ should be able to be added at any place in this file.
   </description>
 </action>
 
+<action name="AutofillCreditCardsAdded">
+  <owner>nikunjb@chromium.org</owner>
+  <owner>sebsg@chromium.org</owner>
+  <description>
+    Recorded when user adds card via chrome://settings/payments page.
+  </description>
+</action>
+
 <action name="AutofillCreditCardsViewed">
   <owner>nikunjb@chromium.org</owner>
   <owner>sebsg@chromium.org</owner>